Circular date calendar



Aug. 30, 1932. H. M. MATHERS 1,874,201

CIRCULAR DATE CALENDAR Filed NOV. 2, 1931 Z Sheets-Sheet l TAN'UARY WED THU FRI TUE di'h: un

Aug. 30, 1932. I fis 1,874,201

CIRCULAR DATE CALENDAR Filed Nov. 2, 1 1 2 Sheets-Sheet 2 SUN I93! J INVENTOR 4 ATTORN EY Patented Aug. 30, 1932 PATENT OFFICE HARRY M. MATHERS, 0F PORTLAND, OREGON CIRCULAR DATE CALENDAR Application filed November 2, 1931.

My invention relates to circular date calendars.

The object of my invention is to provide a practical and economical annular calendar i adapted, by means of a radial hand, to indicate successively without auxiliary devices, the current day of the week and month as it occurs, regardless of the differences in the number of days in the respective months or 10 the Variations of the days of the weeks corresponding thereto.

A further object of my invention is to provide an annular calendar adapted to be combined with a clock provided with a third or :5 calendar hand operated by the clock mechanism, thereby to provide full information as to the time of the day, week and month by means of a single instrument.

Heretofore, the combination of a calendar if) and clock has not been satisfactory for the reasonthat the months do not have equal numbers of days, and hence the calendar hand of the clock must be provided with an irregular rate of rotation corresponding to the number of days in the successive months; this requires complicated and expensive mechanism. Further, such calendar clocks as have been provided have been incapable of indicating the days of theweek, since they vary with respect to the days of the month,

and it is impossible to provide for this purpose a simple but complete calendar adapted to serve for all the months.

I attain my above objects in combinationwith a calendar, dial and a calendar hand, a series of annular calendarsheets adapted to be placed on said dial, one over the other, each sheet bearing the numerals of the month which it represents, the numerals representing the first days of the underlying consecutive calendar sheets being arranged to follow directly, respectively, the numeral representing the last day of the month on the overlying calendar sheet, whereby, upon the advancement of said hand and the removal of Serial N'o. 572,605.

the top calendar sheet the numeral representing the first day of the month on the underlying calendar sheet will be in registration with the advanced position of the said hand.

A still further object of my invention is to provide a clock adapted to have my calendar mounted thereon in a convenient and economical manner and so constructed as to permit the ready removal of the sheet carrying the calendar of the preceding month.

These and other incidental features of my calendar, the details of construction and mode of operation are hereinafter fully described with reference to the accompanying drawings.

In the drawings:

Fig. 1 shows an elevation of a clock provided with a calendar hand and a lateral, circumferential flange upon which my calendar is mounted;

Fig. 2 shows a central vertical section of the same;

Fig. 3 shows an elevation of the clock with my calendar removed;

Fig. 4 shows an enlarged detached view of my calendar with one sheet folded back to expose the arrangement of the underlying sheet;

Fig. 5 shows a modification of my invention in which the front of the clock is provided with a hinged cover adapted to conceal the underlying calendar sheets, which in this embodiment are printed upon relatively stiff cards;

Fig. 6 shows a reduced elevation of the same with the cover removed; 80 Fig. 7 shows a side elevation of the clock with the cover open andillustrates how the calendar cards are removable;

Fig. 8 shows an enlarged side elevation of this modification partly in section and illus as, trates how'the calendar cards are arranged within the cover; and v 7 Figs. 9, 10 and 11 show respective calendar cardsefor the months of January, February and Marchand further illustrate the relative V lateral marginal flange cl, adapted to have 7 the other.

sheet, as illustratedat e, and e2 in Fig. 4

secured thereon a series or pad of annular .monthly calendar sheets e preferably printed upon thin paper and super-imposed one on The monthly calendar sheets 6 are preferably secured on a section of stiff cardboard f or the likeby suitable adhesi-ve so as to be conveniently removable, and the cardboard section 7 is in turn removably secured on the flange (Z, preferably by snap fasteners g, in order to be conveniently removable and to permit replacements by a new set of sheets when theold ones are exhausted. The'monthly calendar sheets e'are'circumferentially divided into 31 spaces which for January and other months having thirtyone days are numbered consecutively from 1 to 31, as in Figspl, 9 and 11. For other months having less than thirty-one days, the remaining spaces are left blank, as inFigs.

4 and'lO.

For a given month, the names of the days of the week are placed opposite the corresponding days of the month, for example,

The calendar sheets 6 are placed one overv the other, so that the numerals representing the first days of the underlyingan'd consecutive calendar sheets are arranged to follow directly, respectively the numerals representing the last day of the month on the overlying and at 63, e4, and'e5. inFigsJ9, 10, and 11.

Operation-men my calendar is' assembled and assuming the present month to be January,'1931, as illustrated in Fig. 1', thecalendar hand will move one space each day until it reaches and passes January 31st. The January sheet will then be torn off, see'Fig. 4, exposing the underlying February sheet, which is so positioned'flthat February first is opposite the calendar hand. Similarly, when the 28th day' r. of. February is passed and the F ebruaryv sheet is torn 0E, the March sheet will be exposed, the dayof which is positioned one day in advance of February 28th and will lie opposite the calendar hand. The sh-eets'of the remaining months are likewise'arranged sothat aseach month passes and theold sheet is torn off, the first day of the succeeding month lies opposite the calendar hand. 7

Thus, upon the removal of the top calendar sheet and the advancement of said hand, the

continue to move, so that when the sheet is torn off, the hand will be pointing to the present day, 'sinceiithe days of the month on the underlying sheet follow in successive order. *Also, if the clock mechanism should stop, the calendar hand 7) may be readily reset at thetim'e the clock is started by means of set ngr na.s s-fi Of course, as illustrated, my calendar -is most c;onveniently used in combination with a clock-and an automatically operatedhand,

but maybe used as wellsolelyas a calendar, inwhich case the hand maybe either automatically operated or set'manual'ly everyday by the; owner.

Figs. 5 to 11, inclusive, illustratea modification of; my calendar, in; which-the iIiCliViCljual calendars are composed of relatively stii'f cards 2, rathe thanthefiexible shee'tshere to-fore'descnibed. f" r F urther, the. clock is. provided with a ramek :QQVQI3- h ng d atthe t as at 4:, -to a per-imetr ical lateral; flange 5 provided-on-the clock body 6; The'clock' dial is;

provided with anoutstanding circumferential fian-gej on which the calendarcards 2 are concentrically arranged and supported, see IIIIF.

Fig.8, The-cover disprovided with side sections-9 so that whenthe cover section 3 is a closed, as illustrated i'nFig, 8 the edges of the underlying cards2 areconcealedand all i that is visible willbe the calendar card ofthe 3/ current montln AlatchlQ isiprovided at the top of the flange 5 for holding the cover in; closed pos t on, Further, by thesemeans, the;

cards 2are housed-within the cover3 so that their edges, are protected from wear. transparent cover, not shown, for the face of the calendar cards maybe provided, eithersecured to thecover or arranged loosely there- 1n of the same shape and size as the calendar cards In suclrmodirication, instead of. discard ing a calendar card after the month has passed, 113 1 8 moved'to the rear ofthe com-r partment and serves to hold the current calendar card posit oned against the, cover.

Further, I propose toiinprint uponthe re ve'rseside of each calendarcard the. next successive month so that the period for which my calendar may be used'without replaceinents will; .be;doubled,;that is, twelve. cards ing the last day of the month on the overlying calendar sheet, whereby upon the ads vancement of said hand and the removal of the top calendar sheet, the numeral representing the first day of the month on the underlying calendar sheet will be in registration with the advanced position of the said hand.

2. In combination with a calendar dial and a calendar hand, a series of annular caleni dar sheets adapted to be placed on said dial,

one over the other, each sheet bearing the numerals of the month which it represents, the numerals representing the first days of the underlying consecutive calendar sheets being arranged to follow directly, respectively, the numeral representing the last day of t e month on the overlying calendar sheet, whereby, upon the advancement of said hand and the removal of the top calendar sheet the numeral representing the first day of the month on the underlying calendar sheet will be in registration with the advanced position of the said hand.

3. In combination, a case comprising a body adapted to have centrally placed therein a dial and to provide an annular space about such dial, a hand carried by said dial and rotatable thereon, a cover hinged to the case and adapted to cover the entire face thereof, a series of calendar sheets adapted to be placed in said annular space, one over the other, each sheet bearing the numerals of the month which it represents, the numerals representing the first days of the underlying consecutive calendar sheets being arranged to follow directly, respectively, the numeral representing the last day of the ing the first day of the month of the under- I lying calendar sheet will be in registration with the advanced position of the said hand.

HARRY M. MATHERS.

month on the overlying calendar sheet,

whereby upon the advancement of said hand and the removal of the top calendar sheet,

the numeral representing the first day of the month of the underlying calendar sheet will be in registration with the advanced position of the said hand.

4. In combination, a case comprising a body adapted to have centrally placed therein a dial and to provide an annular space about such dial, a hand carried by said dial and rotatable thereon, an open cover hinged to the case and adapted to cover a circum 

